Phoenix ContactFeed-through terminal blocks, multi-conductor terminal blocks, and multi-level terminal blocks
Product Model
UDB 2X25/16 BU
Key Features
- 1High Current Rating: Handles up to 101 A of nominal current.
- 2Durable Construction: Made with PA insulating material for long-lasting performance.
- 3Easy Installation: Features screw connections for simple and secure wiring.
- 4Compliance Standards: Meets DIN VDE 0603-2/EN 60998-1 standards for safety and reliability.
- 5Versatile Compatibility: Compatible with AWG 8 to 2 and conductor cross sections up to 25 mm².
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| General | Up to 3 terminal blocks alignable | Note | The max. load current must not be exceeded by the total current of all connected conductors. |
| Product type | Feed-through terminal block | Number of positions | 1 |
| Number of connections | 4 | Number of rows | 1 |
| Potentials | 1 | Article revision | 00 |
| Overvoltage category | III | Degree of pollution | 3 |
| Rated surge voltage | 8 kV | Maximum power dissipation for nominal condition | 3.26 W |
| Number of connections per level | 4 | Nominal cross section | 25 mm² |
| Screw thread | M5/M6 | Tightening torque | 2.2 ... 2.5 Nm |
| Stripping length | 16 mm | Connection in acc. with standard | IEC 60998-1 |
| Conductor cross section rigid | 1.5 mm² ... 25 mm² | Cross section AWG | 14 ... 4 (converted acc. to IEC) |
| Conductor cross section flexible | 10 mm² ... 16 mm² | Conductor cross section, flexible [AWG] | 6 ... 6 (converted acc. to IEC) |
| Conductor cross-section flexible (ferrule without plastic sleeve) | 1.5 mm² ... 16 mm² | Flexible conductor cross section (ferrule with plastic sleeve) | 1.5 mm² ... 10 mm² |
| Nominal current | 101 A | Maximum load current | 101 A |
| Nominal voltage | 400 V (max. 1000 V) | Note | Use ferrules for stranded conductors |
| Nominal cross section | 25 mm² | Tightening torque | 1.7 ... 2 Nm |
| Stripping length | 16 mm | Connection in acc. with standard | IEC 60998-1 |
| Conductor cross section rigid | 1.5 mm² ... 16 mm² | Conductor cross-section flexible (ferrule without plastic sleeve) | 1.5 mm² ... 10 mm² |
| Flexible conductor cross section (ferrule with plastic sleeve) | 1.5 mm² ... 6 mm² | Width | 23 mm |
| Height | 46 mm | Depth on NS 35/7,5 | 42 mm |
| Depth on NS 35/15 | 49.5 mm | Color | blue (RAL 5015) |
| Flammability rating according to UL 94 | V0 | Insulating material group | I |
| Insulating material | PA | Result | Test passed |
| Requirement temperature-rise test | Increase in temperature ≤ 45 K | Result | Test passed |
| Short-time withstand current 25 mm² | 3 kA | Result | Test passed |
| Test voltage setpoint | 1.89 kV | Result | Test passed |
| Open side panel | No | Result | Test passed |
| DIN rail/fixing support | NS 32/NS 35 | Result | Test passed |
| Rotation speed | 10 (+/- 2) rpm | Revolutions | 135 |
| Conductor cross section/weight | 1.5 mm² / 0.4 kg
16 mm² / 2.9 kg
25 mm² / 4.5 kg | Result | Test passed |
| Time of exposure | 30 s | Result | Test passed |
| Specification | DIN EN 50155 (VDE 0115-200):2018-05 | Spectrum | Service life test category 2, bogie-mounted |
| Frequency | f | ASD level | 6.12 (m/s²)²/Hz |
| Acceleration | 3.12g | Test duration per axis | 5 h |
| Test directions | X-, Y- and Z-axis | Result | Test passed |
| Pulse shape | Half-sine | Acceleration | 5g |
| Shock duration | 30 ms | Number of shocks per direction | 3 |
| Test directions | X-, Y- and Z-axis (pos. and neg.) | Result | Test passed |
| Ambient temperature (operation) | -60 °C ... 110 °C (Operating temperature range incl. self-heating; for max. short-term operating temperature, see RTI Elec.) | Ambient temperature (storage/transport) | -25 °C ... 60 °C (for a short time, no longer than 24 h, -60°C to +70°C) |
| Ambient temperature (assembly) | -5 °C ... 70 °C | Ambient temperature (actuation) | -5 °C ... 70 °C |
| Permissible humidity (operation) | 20 % ... 90 % | Permissible humidity (storage/transport) | 30 % ... 70 % |
| Connection in acc. with standard | IEC 60998-1
IEC 60998-1 | Mounting type | NS 35/7,5
NS 35/15 |
Specifications may be subject to change without notice